Solar System News

October 5, 2024

Top Headlines

Carbon Dioxide and Hydrogen Peroxide on Pluto's Moon Charon

Oct. 1, 2024 — Astronomers have detected carbon dioxide and hydrogen peroxide on the frozen surface of Pluto's largest moon, Charon, using observations from the James Webb Space Telescope. These discoveries add to Charon's known chemical inventory, previously ...

A New Birthplace for Asteroid Ryugu

Sep. 27, 2024 — Asteroid Ryugu possibly did not travel as far from its place of origin to its current near-Earth orbit as previously assumed. New research suggests that Ryugu was formed near Jupiter. Earlier studies had pointed to an origin beyond the orbit of ...

Asteroid Ceres Is a Former Ocean World That Slowly Formed Into a Giant, Murky Icy Orb

Sep. 27, 2024 — A crater-rich dwarf planet named Ceres located in the main asteroid belt between the orbits of Mars and Jupiter was long thought to be composed of a materials mixture not dominated by water ice. ...

This Rocky Planet Around a White Dwarf Resembles Earth -- 8 Billion Years from Now

Sep. 26, 2024 — A 2020 microlensing event was caused by a planetary system with an Earth-like planet and brown dwarf. The star type was uncertain. The team has determined that the star is a white dwarf, a system ...

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Mars' Missing Atmosphere Could Be Hiding in Plain Sight

Sep. 25, 2024 — New research suggests Mars' missing atmosphere -- which dramatically diminished 3.5 billion years ago -- could be locked in the planet's clay-covered crust. Water on Mars could have set off a chain ...

Astronomers Catch a Glimpse of a Uniquely Inflated and Asymmetric Exoplanet

Sep. 24, 2024 — Astronomers have observed the atmosphere of a hot and uniquely inflated exoplanet using NASA's James Webb Space ...

Volcanoes May Help Reveal Interior Heat on Jupiter Moon

Sep. 19, 2024 — By staring into the hellish landscape of Jupiter's moon Io -- the most volcanically active location in the solar system -- astronomers have been able to study a fundamental process in planetary ...

Organic Matter on Mars Was Formed from Atmospheric Formaldehyde

Sep. 19, 2024 — Researchers have developed a Martian atmospheric evolution model to propose a new theory about Mars's ...

A Wobble from Mars Could Be Sign of Dark Matter

Sep. 17, 2024 — Watching for changes in Mars' orbit over time could be new way to detect passing dark matter, according to ...

Gigantic Asteroid Impact Shifted the Axis of Solar System's Biggest Moon

Sep. 3, 2024 — Around 4 billion years ago, an asteroid hit the Jupiter moon Ganymede. Now, a researcher realized that the Solar System's biggest moon's axis has shifted as a result of the impact, which confirmed ...

How Bright Is the Universe's Glow? Study Offers Best Measurement Yet

Sep. 3, 2024 — Over billions of years, the universe's stars and galaxies shined their light into space, leaving behind an imperceptibly faint night light known as the cosmic optical background. NASA's New Horizons ...

Six New Rogue Worlds: Star Birth Clues

Aug. 27, 2024 — The James Webb Space Telescope has spotted six likely rogue worlds -- objects with planet-like masses but untethered from any star's gravity -- including the lightest ever identified with a dusty ...

NASA's DART Impact Permanently Changed the Shape and Orbit of Asteroid Moon

Aug. 23, 2024 — A new study provides insights on the geophysics behind asteroid formation and ...

Meteor Showers Shed Light on Where Comets Formed in the Early Solar System

Aug. 22, 2024 — Researchers studying meteor showers have found that not all comets crumble the same way when they approach the Sun. In a new study, they ascribe the differences to the conditions in the ...

Spectacular Increase in the Deuterium/hydrogen Ratio in Venus' Atmosphere

Aug. 20, 2024 — Our understanding of Venus' water history and the potential that it was once habitable in the past is being challenged by recent ...

Tracking Down the Asteroid That Sealed the Fate of the Dinosaurs

Aug. 16, 2024 — The asteroid that led to the extinction of the dinosaurs 66 million years ago probably came from the outer solar ...

Rocks Collected on Mars Hold Key to Water and Perhaps Life on the Planet: Bring Them Back to Earth

Aug. 14, 2024 — Between July and November of 2022, NASA's Perseverance rover collected seven samples of sediment from an ancient alluvial fan in Jezero crater. While onboard analysis gave researchers some ...

SwRI-Led Team Finds Evidence of Hydration on Asteroid Psyche

Aug. 13, 2024 — Using data from NASA's James Webb Space Telescope, astronomers have confirmed hydroxyl molecules on the surface of the metallic asteroid Psyche. The presence of hydrated minerals suggests a ...

Measuring Martian Winds With Sound

Aug. 13, 2024 — Martian landers have been able capture measurements of wind speeds -- some gauging the cooling rate of heated materials when winds blow over them, others using cameras to image 'tell-tales' ...

Scientists Find Oceans of Water on Mars: It's Just Too Deep to Tap

Aug. 12, 2024 — Quakes and meteor impacts on Mars generate seismic waves that can help map the interior. A new study analyzed seismic waves detected by the Insight lander and concludes that 11-20 kilometers beneath ...

Scientists Lay out Revolutionary Method to Warm Mars

Aug. 7, 2024 — Ever since we learned that the surface of planet Mars is cold and dead, people have wondered if there is a way to make it friendlier to life. The newly proposed method is over 5,000 times more ...

Scientists Pin Down the Origins of the Moon's Tenuous Atmosphere

Aug. 2, 2024 — Scientists say they have identified the main process that formed the moon's atmosphere and continues to sustain it today. The team reports that the lunar atmosphere is primarily a product of ...

Key to Rapid Planet Formation

Aug. 1, 2024 — Researchers have developed a new model to explain the formation of giant planets such as Jupiter, which furnishes deeper insights into the processes of planet formation and could expand our ...

Expiring Medications Could Pose Challenge on Long Space Missions

July 23, 2024 — A new study shows that over half of the medicines stocked in space -- staples such as pain relievers, antibiotics, allergy medicines, and sleep aids -- would expire before astronauts could return to ...

Researchers Explore the Effects of Stellar Magnetism on Potential Habitability of Exoplanets

July 22, 2024 — A study extends the definition of a habitable zone for planets to include their star's magnetic ...

Life Signs Could Survive Near Surfaces of Enceladus and Europa

July 21, 2024 — Europa and Enceladus, icy moons of Jupiter and Saturn respectively, have evidence of oceans beneath their crusts. A NASA experiment suggests -- if these oceans support life -- signatures of that life ...

Astronomers Spot a 'Highly Eccentric' Planet on Its Way to Becoming a Hot Jupiter

July 17, 2024 — The newly discovered planet TIC 241249530 b has the most highly elliptical, or eccentric, orbit of any known planet. It appears to be a juvenile planet that is in the midst of becoming a hot Jupiter, ...

New Analysis of Cassini Data Yields Insights Into Titan's Seas

July 16, 2024 — A new study of radar experiment data from the Cassini-Huygens mission to Saturn has yielded fresh insights related to the makeup and activity of the liquid hydrocarbon seas near the north pole of ...

Scientific Definition of a Planet Says It Must Orbit Our Sun; A New Proposal Would Change That

July 11, 2024 — The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects ...

The Origins of Dark Comets

July 10, 2024 — Up to 60% of near-Earth objects could be dark comets, mysterious asteroids that orbit the sun in our solar system that likely contain or previously contained ice and could have been one route for ...

Found With Webb: A Potentially Habitable Icy World

July 9, 2024 — A international team of astronomers has made an exciting discovery about the temperate exoplanet LHS 1140 b: it could be a promising 'super-Earth' covered in ice or ...

Stench of a Gas Giant? Nearby Exoplanet Reeks of Rotten Eggs, and That's a Good Thing

July 8, 2024 — An exoplanet infamous for its deadly weather has been hiding another bizarre feature -- it reeks of rotten eggs, according to a new study of data from the James Webb Space ...

Organic Material from Mars Reveals the Likely Origin of Life's Building Blocks

July 1, 2024 — Two samples from Mars together deliver clear evidence of the origin of Martian organic material. The study presents solid evidence for a prediction made over a decade ago that could be key to ...

New Class of Mars Quakes Reveals Daily Meteorite Strikes

June 28, 2024 — An international team of researchers combine orbital imagery with seismological data from NASA's Mars InSight lander to derive a new impact rate for meteorite strikes on Mars. Seismology also ...